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下面是有关be动词和助动词的区别： 1. be动词(am/is/are)： 主语 be动词(原形) be动词(过去式) I am was He/she/it is was We/you/they are were 2.助动词(do/does/did) 问句 答句 Do+非第三人称单数 +动词原形…? …do/don't Does+第三人称单数 …does/doesn't Did+所有主格 …did/didn't 问句 答句 What do you/they/we… +动词原形? I/They/We+动词原形…。 What does he/she/it… He/She/It +(动词+S)…. What did you/they/we/ he/she/it… I/They/We/ He/She/It +动词过去式。 | 
